This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122.
Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | unaffected |
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Tracking
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Tue, 20 Oct 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users. This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue. | |
| Title | Apache Tomcat: HTTP/2 request/response mix-up after error during async processing | |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-10-20T13:46:50.842Z
Reserved: 2026-09-28T15:30:32.593Z
Link: CVE-2026-101356
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-20T14:16:55.767
Modified: 2026-10-20T14:16:55.767
Link: CVE-2026-101356
Redhat
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OpenCVE Enrichment
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No weakness.